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1 When the burner of a stovetop is very hot, it is a source of heat energy. 2  Anything placed onto the stovetop and warmed, whether a pot of tea or a skillet for frying eggs, also become sources of heat energy. 3  Automobile fuels such as gasoline are sources of heat energy, as is the hot engine of a racecar or a school bus.
The use of solar power (photovoltaic panels [PV], solar hot water, Concentrated Solar Power [CSP]) does not contribute to global warming. The original heat from the sun, of â¦course, is the source of global warming, because we are trapping more and more of its heat. It is the heat from the sun (solar power) that warms the earth. The earth then radiates heat back up into the atmosphere which warms the greenhouse gases.